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| author |   Mark Salter <msalter@redhat.com> | 2017-07-11 12:45:43 -0400 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-07-12 13:11:49 +0200 |
| commit | 1dc482b6578e2869e51c35276017178503d5ac81 (patch) | |
| tree | 56ded243b17c929a1d4c09e12307c60953d00a0c /drivers | |
| parent | Linux 4.12 (diff) | |
| download | wireguard-linux-1dc482b6578e2869e51c35276017178503d5ac81.tar.xz wireguard-linux-1dc482b6578e2869e51c35276017178503d5ac81.zip | |
ACPI / irq: Fix return code of acpi_gsi_to_irq()
The function acpi_gsi_to_irq() must return 0 on success as the caller
ghes_probe expects an 0 for success. This change also matches x86
implementation.
This patch was submitted around 4.5 timeframe but wasn't pushed because
it didn't fix a real problem. Now that RAS/GHES patches are in kernel,
this fixes an error seen on a Mustang (arm64) platform:
GHES: Failed to map GSI to IRQ for generic hardware error source: 2
GHES: probe of GHES.2 failed with error 81
Signed-off-by: Tuan Phan <tphan@apm.com>
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/irq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c index 830299a74b84..7c352cba0528 100644 --- a/drivers/acpi/irq.c +++ b/drivers/acpi/irq.c @@ -24,7 +24,7 @@ static struct fwnode_handle *acpi_gsi_domain_id; * * irq location updated with irq value [>0 on success, 0 on failure] * - * Returns: linux IRQ number on success (>0) + * Returns: 0 on success * -EINVAL on failure */ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) @@ -37,7 +37,7 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irq) * *irq == 0 means no mapping, that should * be reported as a failure */ - return (*irq > 0) ? *irq : -EINVAL; + return (*irq > 0) ? 0 : -EINVAL; } EXPORT_SYMBOL_GPL(acpi_gsi_to_irq); |